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/* $OpenBSD: read_bsd_terminfo.c,v 1.5 1999/03/02 06:23:29 millert Exp $ */
/*
* Copyright (c) 1998, 1999 Todd C. Miller <Todd.Miller@courtesan.com>
* Copyright (c) 1996 SigmaSoft, Th. Lockert <tholo@sigmasoft.com>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by SigmaSoft, Th. Lockert.
* 4. The name of the authors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES,
* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef lint
static char rcsid[] = "$OpenBSD: read_bsd_terminfo.c,v 1.5 1999/03/02 06:23:29 millert Exp $";
#endif
#include <curses.priv.h>
#include <tic.h>
#include <term.h> /* lines, columns, cur_term */
#include <term_entry.h>
#define _PATH_TERMINFO "/usr/share/misc/terminfo"
/* Function prototypes for private functions, */
static int _nc_lookup_bsd_terminfo_entry __P((const char *const, const char *const, TERMTYPE *));
/*
* Look up ``tn'' in the BSD terminfo.db file and fill in ``tp''
* with the info we find there.
* Returns 1 on success, 0 on failure.
*/
int
_nc_read_bsd_terminfo_entry(tn, filename, tp)
const char *const tn;
char *const filename;
TERMTYPE *const tp;
{
char **fname, *p;
char envterm[PATH_MAX]; /* local copy of $TERMINFO */
char hometerm[PATH_MAX]; /* local copy of $HOME/.terminfo */
char *pathvec[4]; /* list of possible terminfo files */
size_t len;
fname = pathvec;
/* $TERMINFO may hold a path to a terminfo file */
if (!issetugid() && (p = getenv("TERMINFO")) != NULL) {
len = strlcpy(envterm, p, sizeof(envterm));
if (len < sizeof(envterm))
*fname++ = envterm;
}
/* Also check $HOME/.terminfo if it exists */
if (!issetugid() && (p = getenv("HOME")) != NULL) {
len = snprintf(hometerm, sizeof(hometerm), "%s/.terminfo", p);
if (len < sizeof(hometerm))
*fname++ = hometerm;
}
/* Finally we check the system terminfo file */
*fname++ = _PATH_TERMINFO;
*fname = NULL;
/*
* Lookup ``tn'' in each possible terminfo file until
* we find it or reach the end.
*/
for (fname = pathvec; *fname; fname++) {
if (_nc_lookup_bsd_terminfo_entry(tn, *fname, tp) == 1) {
/* Set copyout parameter and return */
(void)strlcpy(filename, *fname, PATH_MAX);
return (1);
}
}
return (0);
}
/*
* Given a path /path/to/terminfo/X/termname, look up termname
* /path/to/terminfo.db and fill in ``tp'' with the info we find there.
* Returns 1 on success, 0 on failure.
*/
int
_nc_read_bsd_terminfo_file(filename, tp)
const char *const filename;
TERMTYPE *const tp;
{
char path[PATH_MAX]; /* path to terminfo.db */
char *tname; /* name of terminal to look up */
char *p;
(void)strlcpy(path, filename, sizeof(path));
/* Split filename into path and term name components. */
if ((tname = strrchr(path, '/')) == NULL)
return (0);
*tname++ = '\0';
if ((p = strrchr(path, '/')) == NULL)
return (0);
*p = '\0';
return (_nc_lookup_bsd_terminfo_entry(tname, path, tp));
}
/*
* Look up ``tn'' in the BSD terminfo file ``filename'' and fill in
* ``tp'' with the info we find there.
* Returns 1 on success, 0 on failure.
*/
static int
_nc_lookup_bsd_terminfo_entry(tn, filename, tp)
const char *const tn;
const char *const filename;
TERMTYPE *const tp;
{
char *pathvec[2];
char *capbuf, *p;
char namecpy[MAX_NAME_SIZE+1];
long num;
int i;
capbuf = NULL;
pathvec[0] = (char *)filename;
pathvec[1] = NULL;
/* Don't prepent any hardcoded entries. */
(void) cgetset(NULL);
/* Lookup tn in filename */
i = cgetent(&capbuf, pathvec, (char *)tn);
if (i == 0) {
_nc_init_entry(tp);
/* Set terminal name(s) */
if ((p = strchr(capbuf, ':')) != NULL)
*p = '\0';
if ((tp->str_table = tp->term_names = strdup(capbuf)) == NULL) {
if (capbuf)
free(capbuf);
return (0);
}
_nc_set_type(_nc_first_name(tp->term_names));
if (p)
*p = ':';
/* Check for overly-long names and aliases */
(void)strlcpy(namecpy, tp->term_names, sizeof(namecpy));
if ((p = strrchr(namecpy, '|')) != (char *)NULL)
*p = '\0';
p = strtok(namecpy, "|");
if (strlen(p) > MAX_ALIAS)
_nc_warning("primary name may be too long");
while ((p = strtok((char *)NULL, "|")) != (char *)NULL)
if (strlen(p) > MAX_ALIAS)
_nc_warning("alias `%s' may be too long", p);
/* Copy capabilities */
for_each_boolean(i, tp) {
if (cgetcap(capbuf, (char *)boolnames[i], ':') == NULL)
tp->Booleans[i] = FALSE;
else
tp->Booleans[i] = TRUE;
}
for_each_number(i, tp) {
if (cgetnum(capbuf, (char *)numnames[i], &num) < 0)
tp->Numbers[i] = 0;
else
tp->Numbers[i] = (int)num;
}
for_each_string(i, tp) {
if (cgetstr(capbuf, (char *)strnames[i], &p) < 0)
tp->Strings[i] = NULL;
else
tp->Strings[i] = p;
}
i = 0;
}
/* We are done with the returned getcap buffer now; free it */
cgetclose();
if (capbuf)
free(capbuf);
return ((i == 0));
}
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